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Finding the Fourth Proportional to 102,873.30, 154,282.95 and 43,678.50

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Solution

The fourth proportional to 102,873.30, 154,282.95 and 43,678.50 is: 65,506.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,873.30 : 154,282.95 = 43,678.50 : x
  2. Step 2: Convert to fraction form
    102,873.30/154,282.95 = 43,678.50/x
  3. Step 3: Cross multiply
    102,873.30x = 154,282.95 × 43,678.50
  4. Step 4: Simplify right side
    102,873.30x = 6,738,847,831.58
  5. Step 5: Solve for x
    x = 6,738,847,831.58/102,873.30
  6. Step 6: Final answer
    x = 65,506.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.